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Topic: gyro or servo ??? need help (Read 890 times)

The story goes like this !! Bought a gaui 425 last November, also bought a futaba 6ex tx and comparable rx ! Had to wait untill Christmas to get the rest of my kit together, but I've only flown it twice as I'm still quite a novice pilot ! But I'm quite good on set up, firstly the tail rudder has been set up in rate mode, but I keep experienceing the rudder having a mind of its own and keeps turning to the right with no input from me ! I then recentre it but it keeps doing it ???????? I even switch to rate mode and it still wants to move when you move the tail, but when its on heading hold the rudder moves as it should untill the servo starts buzzing and the rudder starts moving, my heli is fitted with a align ds520 digital servo and a E-TECH G105 gyro, can any body help with this problem.

Maybe bypass the gyro and see if the servo is buzzing? I am not familiar with that gyro, do you have it set for a digital servo? I am very familiar with the DS520 servo but I always have it paired with a GP780 or 750.

Maybe bypass the gyro and see if the servo is buzzing? I am not familiar with that gyro, do you have it set for a digital servo? I am very familiar with the DS520 servo but I always have it paired with a GP780 or 750.

Not bypassed the gyro as yet but will try that tomorrow and it is set for digital! My gut tells me its the gyro as It's sub £10 to buy on eBay !! Have sent for a gyro/servo combo and I'm just waiting for it to arrive, again just bought a cheap one to find out problem is. Thanks for the help

Maybe bypass the gyro and see if the servo is buzzing? I am not familiar with that gyro, do you have it set for a digital servo? I am very familiar with the DS520 servo but I always have it paired with a GP780 or 750.

Not bypassed the gyro as yet but will try that tomorrow and it is set for digital! My gut tells me its the gyro as It's sub £10 to buy on eBay !! Have sent for a gyro/servo combo and I'm just waiting for it to arrive, again just bought a cheap one to find out problem is. Thanks for the help

Bypassed the gyro and the servo is quiet ! But does make its normal buzz when using rudder ! Recconected the gyro and servo to it and at the moment no buzzing or movement of the rudder !!!!!!! Just have to see how it goes on. Cheers again

Fitted the new gyro ! I know its a cheepy but its just to see if it stops the servo from having a mind of its own ! Thing is when I connected the battery and ran it up the tail servo started to go from side to side ! And got quicker the more throttle I used ! Then I realized I had to turn down the gain and its been fine since, but will spend some money on a good one on my birthday, thanks for all the huelp guys just a few minor tweeks to do and I'm good again thanks for the help.

wizzard363

Why you want to put a sub £10 gyro on a heli like Gaui 425? I don't. At least I will put a 780 or Quark.

One of the best things I ever did was invest in a good gyro .The Spartan Quark eliminated all my tail drift problems that I was having with the cheaper gyros (I tried 4 different ones and was getting very )Matched up with a good fast tail servo like this http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10522 you will have no problems at all.